Formerly the non-partisan watchdog of the 2010 US Census, and currently an opinion blog that covers all things political, media, foreign policy, globalization, and culture…but sometimes returning to its census/demographics roots.

California could get nine House seats it doesn’t deserve because illegal aliens will be counted in 2010.

Mr. Baker teaches constitutional law at Louisiana State University. Mr. Stonecipher is a Louisiana pollster and demographic analyst.

Next year’s census will determine the apportionment of House members and Electoral College votes for each state. To accomplish these vital constitutional purposes, the enumeration should count only citizens and persons who are legal, permanent residents. But it won’t.

Instead, the U.S. Census Bureau is set to count all persons physically present in the country—including large numbers who are here illegally. The result will unconstitutionally increase the number of representatives in some states and deprive some other states of their rightful political representation. Citizens of “loser” states should be outraged. Yet few are even aware of what’s going on.

In 1790, the first Census Act provided that the enumeration of that year would count “inhabitants” and “distinguish” various subgroups by age, sex, status as free persons, etc. Inhabitant was a term with a well-defined meaning that encompassed, as the Oxford English Dictionary expressed it, one who “is a bona fide member of a State, subject to all the requisitions of its laws, and entitled to all the privileges which they confer.”

Thus early census questionnaires generally asked a question that got at the issue of citizenship or permanent resident status, e.g., “what state or foreign country were you born in?” or whether an individual who said he was foreign-born was naturalized. Over the years, however, Congress and the Census Bureau have added inquiries that have little or nothing to do with census’s constitutional purpose.

By 1980 there were two census forms. The shorter form went to every person physically present in the country and was used to establish congressional apportionment. It had no question pertaining to an individual’s citizenship or legal status as a resident. The longer form gathered various kinds of socioeconomic information including citizenship status, but it went only to a sample of U.S. households. That pattern was repeated for the 1990 and 2000 censuses.

The 2010 census will use only the short form. The long form has been replaced by the Census Bureau’s ongoing American Community Survey. Dr. Elizabeth Grieco, chief of the Census Bureau’s Immigration Statistics Staff, told us in a recent interview that the 2010 census short form does not ask about citizenship because “Congress has not asked us to do that.”

Because the census (since at least 1980) has not distinguished citizens and permanent, legal residents from individuals here illegally, the basis for apportionment of House seats has been skewed. According to the Census Bureau’s latest American Community Survey data (2007), states with a significant net gain in population by inclusion of noncitizens include Arizona, California, Florida, Illinois, Nevada, New Jersey, New York and Texas. (There are tiny net gains for Hawaii and Massachusetts.)

This makes a real difference. Here’s why:

According to the latest American Community Survey, California has 5,622,422 noncitizens in its population of 36,264,467. Based on our round-number projection of a decade-end population in that state of 37,000,000 (including 5,750,000 noncitizens), California would have 57 members in the newly reapportioned U.S. House of Representatives.

However, with noncitizens not included for purposes of reapportionment, California would have 48 House seats (based on an estimated 308 million total population in 2010 with 283 million citizens, or 650,000 citizens per House seat). Using a similar projection, Texas would have 38 House members with noncitizens included. With only citizens counted, it would be entitled to 34 members.